19 Oct 18 - A series of floods that hit the ancient city of Angkor would have overwhelmed and destroyed its vast water network, according to a new study that provides an explanation for the downfall of the world’s biggest pre-industrial city.

6 Sep 18 - As Bangkok hosts climate-change talks, the sprawling city of more than 10 million is itself under siege from the environment, with dire forecasts warning it could be partially submerged in just over...

20 Jul 18 - The average Singaporean uses an unconscionable 13 plastic bags a day. With its only landfill site fast filling up, what are consumers and businesses doing to defuse the nation's plastic waste...